From 5188c7d41f63a1c7939e5b5f7643dfd886df4d18 Mon Sep 17 00:00:00 2001
From: Grant Limberg <grant.limberg@zerotier.com>
Date: Wed, 25 Nov 2020 20:06:43 -0800
Subject: [PATCH] com & com security already initialized by here

---
 osdep/EthernetTap.cpp        | 3 ++-
 osdep/WindowsEthernetTap.cpp | 8 +-------
 2 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/osdep/EthernetTap.cpp b/osdep/EthernetTap.cpp
index 4f3d20f40..ab3f7acfc 100644
--- a/osdep/EthernetTap.cpp
+++ b/osdep/EthernetTap.cpp
@@ -112,7 +112,7 @@ std::shared_ptr<EthernetTap> EthernetTap::newInstance(
 				-1,
 				NULL,
 				NULL,
-				RPC_C_AUTHN_LEVEL_DEFAULT,
+				RPC_C_AUTHN_LEVEL_PKT,
 				RPC_C_IMP_LEVEL_IMPERSONATE,
 				NULL,
 				EOAC_NONE,
@@ -120,6 +120,7 @@ std::shared_ptr<EthernetTap> EthernetTap::newInstance(
 			);
 			if (FAILED(hres)) {
 				CoUninitialize();
+				fprintf(stderr, "WinEthernetTap: Failed to initialize security");
 				throw std::runtime_error("WinEthernetTap: Failed to initialize security");
 			}
 			_comInit = true;
diff --git a/osdep/WindowsEthernetTap.cpp b/osdep/WindowsEthernetTap.cpp
index 71c7c503d..ab6ea6194 100644
--- a/osdep/WindowsEthernetTap.cpp
+++ b/osdep/WindowsEthernetTap.cpp
@@ -816,13 +816,7 @@ void WindowsEthernetTap::setFriendlyName(const char *dn)
 		RegCloseKey(ifp);
 	}
 
-	HRESULT hr = CoInitialize(nullptr);
-	if (hr != S_OK) return;
-	CoInitializeSecurity(NULL, -1, NULL, NULL,
-		RPC_C_AUTHN_LEVEL_PKT,
-		RPC_C_IMP_LEVEL_IMPERSONATE,
-		NULL, EOAC_NONE, NULL);
-	if (hr != S_OK) return;
+	HRESULT hr = S_OK;
 
 	INetSharingManager *nsm;
 	hr = CoCreateInstance(__uuidof(NetSharingManager), NULL, CLSCTX_ALL, __uuidof(INetSharingManager), (void**)&nsm);